lewuathe 730cb82226 [mlir][complex] Canonicalize complex.add zero
Adding complex value with 0 for real and imaginary part can be ignored.

NOTE: This type of canonicalization can be written in an easy and tidy format using `complex.number` after constant op supports custom attribute.

Differential Revision: https://reviews.llvm.org/D130748
2022-07-29 18:03:45 +02:00
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